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                        管道和重定向
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                        <h2 id="&#x7BA1;&#x9053;">&#x7BA1;&#x9053;</h2>
<p>&#x7BA1;&#x9053;&#x7684;&#x64CD;&#x4F5C;&#x7B26;&#x662F; &quot; | &quot;&#xFF0C;&#x5B83;&#x53EA;&#x80FD;&#x5904;&#x7406;&#x7ECF;&#x7531;&#x524D;&#x9762;&#x4E00;&#x4E2A;&#x6307;&#x4EE4;&#x4F20;&#x51FA;&#x7684;&#x6B63;&#x786E;&#x8F93;&#x51FA;&#x4FE1;&#x606F;&#xFF0C;&#x7136;&#x540E;&#x4F20;&#x9012;&#x7ED9;&#x4E0B;&#x4E00;&#x4E2A;&#x547D;&#x4EE4;&#xFF0C;&#x4F5C;&#x4E3A;&#x4E0B;&#x4E00;&#x4E2A;&#x547D;&#x4EE4;&#x7684;&#x6807;&#x51C6;&#x8F93;&#x5165;&#x3002;&#x4F8B;&#x5982;<code>ps -ef|more</code></p>
<p>&#x6CE8;&#x610F;&#xFF1A;</p>
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<li>&#x7BA1;&#x9053;&#x547D;&#x4EE4;&#x53EA;&#x80FD;&#x5904;&#x7406;&#x524D;&#x4E00;&#x4E2A;&#x547D;&#x4EE4;&#x7684;&#x6B63;&#x786E;&#x8F93;&#x51FA;&#xFF0C;&#x4E0D;&#x80FD;&#x5904;&#x7406;&#x9519;&#x8BEF;&#x8F93;&#x51FA;&#x3002;</li>
<li>&#x7BA1;&#x9053;&#x547D;&#x4EE4;&#x7684;&#x53F3;&#x8FB9;&#x547D;&#x4EE4;&#xFF0C;&#x5FC5;&#x987B;&#x8981;&#x80FD;&#x591F;&#x63A5;&#x6536;&#x6807;&#x51C6;&#x7684;&#x8F93;&#x5165;&#x6D41;&#x624D;&#x884C;&#x3002;</li>
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<p>&#x6709;&#x4E9B;&#x547D;&#x4EE4;&#x65E0;&#x6CD5;&#x63A5;&#x53D7;&#x8F93;&#x5165;&#x6D41;&#xFF0C;&#x9700;&#x8981;&#x901A;&#x8FC7;xargs&#x6765;&#x5C06;&#x8F93;&#x5165;&#x6D41;&#x8F6C;&#x6362;&#x6210;&#x4E3A;&#x547D;&#x4EE4;&#x884C;&#x53C2;&#x6570;&#x3002;</p>
<p>&#x5982;&#xFF1A;<code>find -name 2.txt | xargs rm -rf</code></p>
<h2 id="&#x91CD;&#x5B9A;&#x5411;">&#x91CD;&#x5B9A;&#x5411;</h2>
<p>&#x6807;&#x51C6;&#x8F93;&#x5165;(stdin)&#x3001;&#x6807;&#x51C6;&#x8F93;&#x51FA;(stdout)&#x3001;&#x6807;&#x51C6;&#x9519;&#x8BEF;(stderr)</p>
<ul>
<li><p>&#x5728;linux&#x4E2D;&#xFF0C;&#x521B;&#x5EFA;&#x4EFB;&#x610F;&#x8FDB;&#x7A0B;&#xFF0C;&#x7CFB;&#x7EDF;&#x4F1A;&#x81EA;&#x52A8;&#x521B;&#x5EFA;&#x4E0A;&#x9762;&#x4E09;&#x4E2A;&#x6570;&#x636E;&#x6D41;&#xFF0C;&#x5176;&#x5B9E;&#x5C31;&#x662F;&#x4E09;&#x4E2A;&#x6587;&#x4EF6;</p>
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<li><p>&#x4E09;&#x4E2A;&#x6587;&#x4EF6;&#x7684;&#x63CF;&#x8FF0;&#x7B26;&#x5206;&#x522B;&#x662F;&#xFF1A;0&#x3001;1&#x3001;2.&#x5176;&#x4E2D;&#xFF0C;0&#x9ED8;&#x8BA4;&#x6307;&#x5411;&#x952E;&#x76D8;&#xFF0C;1&#x548C;2&#x9ED8;&#x8BA4;&#x6307;&#x5411;&#x7EC8;&#x7AEF;&#x7A97;&#x53E3;&#x3002;</p>
</li>
<li><p>&#x91CD;&#x5B9A;&#x5411;&#x5C31;&#x662F;&#x6539;&#x53D8;&#x539F;&#x6765;&#x9ED8;&#x8BA4;&#x7684;&#x8868;&#x73B0;&#x4F4D;&#x7F6E;&#x3002;</p>
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<li><p>&#x6F14;&#x793A;&#xFF1A;</p>
<pre><code>&#x8F93;&#x51FA;&#x91CD;&#x5B9A;&#x5411;&#xFF1A;
    ls &gt; 1.txt        # &#x4F1A;&#x65B0;&#x5EFA;&#x6587;&#x4EF6;&#xFF0C;&#x82E5;&#x6587;&#x4EF6;&#x5DF2;&#x5B58;&#x5728;&#xFF0C;&#x4F1A;&#x6E05;&#x7A7A;
    ls &gt;&gt; 1.txt        # &#x8FFD;&#x52A0;&#x5230;&#x6587;&#x4EF6;&#x672B;&#x5C3E;&#xFF0C;&#x82E5;&#x6587;&#x4EF6;&#x4E0D;&#x5B58;&#x5728;&#x5219;&#x521B;&#x5EFA;
&#x9519;&#x8BEF;&#x91CD;&#x5B9A;&#x5411;&#xFF1A;
    ls /xxx 2&gt; 1.txt    # &#x5C06;&#x6807;&#x51C6;&#x9519;&#x8BEF;&#x91CD;&#x5B9A;&#x5411;&#x5230;1.txt
&#x540C;&#x65F6;&#x91CD;&#x5B9A;&#x5411;&#x8F93;&#x51FA;&#x548C;&#x9519;&#x8BEF;&#xFF1A;
    ls /xxx /home &amp;&gt; 1.txt         # &#x5C06;&#x6807;&#x51C6;&#x8F93;&#x51FA;&#x548C;&#x9519;&#x8BEF;&#x540C;&#x65F6;&#x91CD;&#x5B9A;&#x5411;&#x5230;1.txt&#x6587;&#x4EF6;
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